A powder shaking device for precise control of quantity and recovery of residual powder in a post-digital printing process

Abstract

This invention discloses a powder-dispensing device for precise quantity control and excess powder recovery in the post-processing of digital printing, relating to the field of digital printing technology. It includes a frame with a double-layer preheating platform on the right side. A powder-spreading mechanism is located near the right side of the frame's inner cavity. A control system presets the powder weight threshold and scraper operating parameters. The powder-spreading mechanism starts, dispensing powder onto the printing substrate. An intelligent monitoring system works synchronously, detecting the powder weight in real time. When the powder weight reaches the threshold, the powder-spreading mechanism automatically stops. After powder dispensing, a first transmission mechanism drives the scraper to push excess powder from the bottom into a recovery box. The recovered powder is guided back to the powder-spreading hopper for recycling via a material guide structure. If insufficient powder weight is detected, an alarm device is triggered, reminding the operator to replenish the powder. The entire process forms a closed loop of "powder dispensing - precise quantity control - automatic excess powder recovery - recycling," adapting to the continuous operation requirements of digital printing production lines.

Description

Technical Field

[0001] This invention relates to the field of digital printing technology, specifically to a toner-shaking device for precise toner control and residual toner recovery in the post-printing process of digital printing. Background Technology

[0002] However, existing digital printing toner shakers have some problems in use. Existing toner shakers have issues such as toner waste, accumulation, and inaccurate toner control. The work of recovering residual toner is usually done manually, which will increase the workload of operators and pollute the environment. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to provide a dust-shaking device for precise volume control and residual dust recovery in the post-processing of digital printing.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a powder-dispensing device for precise quantity control and residual powder recovery in digital printing post-processing, comprising a frame, a double-layer preheating platform on the right side of the frame, a powder-spreading mechanism near the right side of the inner cavity of the frame, a powder-dispensing weight sensing mechanism on the right side of the powder-spreading mechanism, and an automatic residual powder recovery mechanism at the bottom of the powder-spreading mechanism near the left side.

[0005] Preferably, the automatic residual powder recovery mechanism has a slot at the bottom, a recovery box at the bottom, a powder outlet at the front of the recovery box, and a first transmission mechanism on the right side of the recovery box.

[0006] Preferably, the inner cavity of the recycling box is provided with a scraper, which is installed and connected to the first transmission mechanism to perform reciprocating motion. The front side of the automatic residual powder recycling mechanism is provided with an automatic powder return lifting mechanism, and a powder spreading hopper is installed on the automatic powder return lifting mechanism.

[0007] Preferably, the powder-spreading hopper is located on the front side of the recycling box near the bottom, and a second transmission mechanism is installed on the powder-spreading mechanism.

[0008] Preferably, a display controller is provided at the top of the rack near the front side.

[0009] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a control system to preset the powder weight threshold and scraper operating parameters. The powder-spreading mechanism starts, spreading powder onto the printing substrate, while an intelligent monitoring system works synchronously to detect the powder weight in real time. When the powder weight reaches the target, the powder-spreading mechanism automatically stops. After powder spreading, the first transmission mechanism drives the automatic scraper to push excess powder from the bottom into a recycling box. The recycled powder is then guided back to the powder-spreading hopper for reuse via a guide structure. If insufficient powder weight is detected, an alarm device is triggered, reminding the operator to replenish the powder. The entire process forms a closed loop of "powder spreading - precise quantity control - automatic residual powder recycling - reuse," adapting to the continuous operation requirements of production lines. It effectively solves the technical problems of powder waste, accumulation, and inaccurate quantity control in traditional powder-shaking devices, transforming manual residual powder recycling into automatic recycling, saving manpower, and eliminating unnecessary pollution. Simultaneously, the double-layer preheating platform can heat both the upper and lower layers of the fabric, improving heating efficiency and facilitating subsequent powder application. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present invention; Figure 2 This is a right-side perspective view of the present invention; Figure 3 This is a cross-sectional view of the frame of the component of the present invention; Figure 4 This is a right-side sectional view of the frame of the component of the present invention; Figure 5 This is a schematic diagram of the automatic residual powder recovery mechanism of the present invention. Figure 6 This is a schematic diagram of the structure of the first transmission mechanism of the component of the present invention; Figure 7 This is a schematic diagram of the powder-spreading mechanism of the component of the present invention; Figure 8 This is a top view of the powder-spreading mechanism of the present invention; Figure 9 This is a bottom view schematic diagram of the powder-spreading mechanism of the present invention; Figure 10 This is a schematic diagram of the automatic powder return and lifting mechanism of the present invention. Figure 11 This is a schematic diagram of the component recycling box structure of the present invention; Figure 12 This is a front view of the scraper component of the present invention; Figure 13 This is a schematic diagram of the scraper structure of the component of the present invention.

[0011] The following are labeled in the diagram: 1. Frame; 2. Double-layer preheating platform; 3. Powder spreading mechanism; 4. Powder shaking weight sensing mechanism; 5. Automatic residual powder recovery mechanism; 6. Recovery box; 7. First transmission mechanism; 8. Scraper; 9. Automatic powder return lifting mechanism; 10. Powder spreading hopper; 11. Second transmission mechanism; 12. Display controller. Detailed Implementation

[0012] Please see Figure 1-13 This invention provides a technical solution: a powder-dispensing device for precise quantity control and residual powder recovery in digital printing post-processing, comprising a frame 1, a double-layer preheating platform 2 on the right side of the frame 1, a powder-spreading mechanism 3 near the right side of the inner cavity of the frame 1, a powder-dispensing weight sensing mechanism 4 on the right side of the powder-spreading mechanism 3, an automatic residual powder recovery mechanism 5 near the left side of the bottom of the powder-spreading mechanism 3, a slot at the bottom of the automatic residual powder recovery mechanism 5, a recovery box 6 at the bottom of the automatic residual powder recovery mechanism 5, a powder outlet at the front of the recovery box 6, a first transmission mechanism 7 on the right side of the recovery box 6, a scraper 8 in the inner cavity of the recovery box 6, the scraper 8 being connected to the first transmission mechanism 7, an automatic powder return and lifting mechanism 9 at the front of the automatic residual powder recovery mechanism 5, a powder-spreading hopper 10 mounted on the automatic powder return and lifting mechanism 9, the powder-spreading hopper 10 being located near the bottom of the front of the recovery box 6, a second transmission mechanism 11 mounted on the powder-spreading mechanism 3, and a display controller 12 at the top of the frame 1 near the front.

[0013] Working principle: This toner-dispensing device is integrated into a designated process in the digital printing production line and works in coordination with the digital printing host. The device consists of a toner-spreading mechanism 3, an intelligent monitoring system, a toner-dispensing weight sensing mechanism 4, an automatic residual toner recovery mechanism 5, a first transmission mechanism 7, an automatic toner return and lifting mechanism 9, a second transmission mechanism 11, and a control system. Each mechanism achieves signal communication and action coordination through circuits and mechanical structures, ensuring that the toner-dispensing, quantity control, and recovery processes are synchronized. It is adapted to the continuous operation requirements of the digital printing production line and can complete the entire toner-dispensing and subsequent processing work without manual intervention. Before starting the device, the operator initializes the parameters according to the printing process requirements by setting preset parameters in the control system, including a preset alarm threshold for insufficient powder. After the device starts, powder is applied to the surface of the digital printing ink, and the intelligent monitoring system is activated simultaneously. The weight sensor at the bottom continuously detects the real-time weight of the remaining powder in the powder application hopper 10 and transmits the weight detection signal to the control system in real time, forming a dynamic monitoring closed loop. The control system compares the real-time weight transmitted by the sensor with the preset acceptable weight threshold in real time. When the real-time detected powder weight drops to the preset acceptable weight threshold, the control system immediately sends a stop signal to the powder application mechanism 3, which quickly stops the powder application operation to avoid waste and printing quality problems caused by excessive powder application. When the real-time detected powder weight by the powder weight sensor 4 is lower than the preset insufficient alarm threshold, the control system triggers the alarm device to promptly remind the operator to replenish the powder, ensuring continuous printing and avoiding printing defects caused by insufficient powder. The powder application mechanism 3 completes the powder application operation in the designated area. After printing, the surface of the printing substrate is coated with powder that meets the process requirements. Excess powder on the substrate surface will naturally fall to the receiving area at the bottom of the device. There are two modes: one is scraping by the scraper 8, and the other is output by the screw rod. All excess powder accumulated in the receiving area is completely scraped off to ensure that there is no powder residue at the bottom. Driven by the first transmission mechanism 7, the scraper 8 accurately pushes the scraped excess powder into the preset recycling box 6 of the device. A guide structure can be set between the recycling box 6 and the powder dispensing bin 10 to realize the rapid return of the recycled powder and complete the recycling of powder. This reduces powder waste and avoids the equipment jamming caused by excess powder accumulation in traditional equipment. The automatic working mode of the scraper 8 is linked and synchronized with the digital printing production line and the powder dispensing mechanism 3. The working frequency and reciprocating stroke of the scraper 8 can be preset by the control system to ensure that the working time of the scraper 8 is precisely matched with the powder dispensing process. For example, the scraper 8 is started immediately after the powder dispensing is completed to avoid the accumulation and solidification of residual powder. No manual operation is required throughout the process, realizing the automation and high efficiency of residual powder recycling. After the device is started, the control system first presets the powder weight threshold and the working parameters of the scraper 8. The powder spreading mechanism 3 starts to spread powder onto the printing substrate, and the intelligent monitoring system works synchronously to detect the powder weight in real time. When the powder weight reaches the standard, the powder spreading mechanism 3 automatically stops spreading powder. After the powder spreading is completed, the first transmission mechanism 7 drives the automatic scraper 8 to push the excess powder at the bottom into the recycling box 6. The recycled powder is guided back to the powder spreading hopper 10 for recycling through the material guiding structure. If the powder weight is detected to be insufficient, the alarm device is triggered to remind the operator to replenish the powder. The whole process forms a closed loop of "powder spreading - precise quantity control - automatic recycling of excess powder - recycling", which is adapted to the continuous operation requirements of the production line and effectively solves the technical problems of powder waste, accumulation, and inaccurate quantity control of traditional powder shaking devices. It changes the manual recycling of excess powder to automatic recycling, saving manpower and avoiding unnecessary pollution. At the same time, the double-layer preheating platform 2 can heat both the upper and lower layers of the fabric, improving heating efficiency and facilitating subsequent powder application operations.

Claims

1. A toner-shaking device for precise toner control and residual toner recovery in digital printing post-processing, comprising a frame (1), characterized in that: The frame (1) is provided with a double-layer preheating platform (2) on the right side. The inner cavity of the frame (1) is provided with a powder-spreading mechanism (3) near the right side. The powder-spreading mechanism (3) is provided with a powder-shaking weight sensing mechanism (4) on the right side. The bottom of the powder-spreading mechanism (3) is provided with an automatic residual powder recovery mechanism (5) near the left side.

2. The toner-shaking device for precise toner control and residual toner recovery in the post-processing of digital printing according to claim 1, characterized in that: The automatic residual powder recovery mechanism (5) has a slot at the bottom and a recovery box (6) at the bottom. The recovery box (6) has a powder outlet at the front and a first transmission mechanism (7) on the right side.

3. The toner-shaking device for precise quantity control and residual toner recovery in the post-processing of digital printing according to claim 2, characterized in that: The recycling box (6) has a scraper (8) inside. The scraper (8) is connected to the first transmission mechanism (7). The automatic residual powder recycling mechanism (5) has an automatic powder return lifting mechanism (9) on its front side. The automatic powder return lifting mechanism (9) is equipped with a powder spreading hopper (10).

4. The toner-shaking device for precise toner control and residual toner recovery in the post-processing of digital printing according to claim 3, characterized in that: The powder hopper (10) is located on the front side of the recycling box (6) near the bottom, and a second transmission mechanism (11) is installed on the powder spreading mechanism (3).

5. The toner-shaking device for precise toner control and residual toner recovery in the post-processing of digital printing according to claim 4, characterized in that: The top of the rack (1) is provided with a display controller (12) near the front side.

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